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1、中国组织工程研究与临床康复第15卷第9期2011–02–26出版JournalofClinicalRehabilitativeTissueEngineeringResearchFebruary26,2011Vol.15,No.9下颌骨角部受力时应力分布的三维有限元分析*★1121吴凌莉，陈骏，李志杰，何祥一Three-dimensionalfiniteelementanalysisofstressdistributionofmandibleangleunderforces1121WuLing-Li,ChenJun,LiZh
2、i-jie,HeXiang-yiAbstract1BACKGROUND:Thestudiesregardingfractureriskindifferentpartsofthemandibleafterimpactarefew.DepartmentofProsthodontics,OBJECTIVE:Tostudytheconditionandcharacteristicsofstressdistributioninthemandible,ofwhichforcesareappliedonSchoolofmandibula
3、ranglebyusing3Dfiniteelementanalysis.Stomatology,METHODS:TheelectronicCTimagesofmandiblewerescannedandthenimportedtotheAmirasoftwareforthefabricationof3DLanzhouUniversity,Lanzhou730000,mandiblemodel.Attheangleof90°,0°tothemiddlesagittalplane,1000Nforceswereapplied
4、ontheleftsideofmandibularGansuProvince,angleinAnsyssoftware.Thereafter,theconditionofstressdistributionandVonMisesstressoftheweakpartsofthemandible2China;Dentalwereexpressedinthe3Dmandiblemodel.Hospital,NorthwestRESULTSANDCONCLUSION:3Dmodelofmandiblewasestablished
5、.WhenforcewasappliedontheleftsideofmandibularUniversityforNationalities,anglein90°angle,bothsidesofmandibularanglesandcondylarneckswereeasilyfractured.TheinsidesurfaceofcentralLanzhou730030,symphysisandtheleftofmentalforamenofmandiblemayshowfissures,whiletherighto
6、fmentalforamenwasslightlydamaged.GansuProvince,Whenforcewasappliedontheleftsideofinferiorborderofmandibularanglein0°angle,bothsidesofmandibularanglesandChinacondylarneckswereeasilyfractured.Theinsideofcentralsymphysisandtheleftofmentalforamenmayshowedfissures,whil
7、eWuLing-li★,therightofmentalforamenslightlydamaged.Itisrevealedthat,whileforceswereappliedontheleftsideofmandibularangle,VonStudyingformaster’sMisesstressmainlyconcentratedontheweakpartsofmandible,whichprovidestheoreticalbasisforpreliminaryclinicaldiagnosisdegree,
8、Departmentandtreatmentofmandibularfractures.ofProsthodontics,SchoolofStomatology,WuLL,ChenJ,LiZJ,HeXY.Three-dimensionalfiniteelementanalysisofstressdist
